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Rexroth HED8OA-2X/350
Hydro-Electric Pressure Switch
Rexroth HED8OA-2X/350 Hydro-Electric Pressure Switch For Transition Resistance Less Than 50 MΩ
The hydro-electric pressure switch type HED 8 is a piston type pressure switch. It mainly consists of housing, installation kit with piston, compression spring, adjustment element and micro switch.
When the pressure to be monitored drops below the set value, the micro switch is operated. The pressure to be monitored is inputed via the nozzle at the piston. Meanwhile, it gets supported by the spring plate, which then transmits the movement to the micro switch, and releases it when the set pressure is achieved. This shift is able to control the electric circuit„s on or off state, which depends on the specific circuit set-up.
The spring plate also brings about a mechanical positive stop to protect the micro switch from possible mechanical destruction in sudden pressure drop and overpressure, while avoiding solid compression from the compression spring.
Noticement: To ensure longer serving life, the pressure switch should be mounted with low vibrations and adequately guarded against hydraulic pressure surges.
The subplate mounting/pipeline installation meets the standards according to ISO 16873 for flange connection and ISO 4401 for vertical stacking elements. It offers 5 different pressure ratings and features up to 4 adjustment types:
The electrical connection can be done with a large cubic connector or with an M12 x 1 connector, with the potential-free switching of currents between 1 mA to 2 A. Furthermore, the UL approval is granted for pressure ranges up to 350 bar. The micro switch also allows NC/NO contact functions.
| Parameter | Value |
|---|---|
| Insulation coordination | Overvoltage Category 3 |
| Transition resistance | < 50 MΩ |
| Minimum current | 1.0 With 24 V DC MA |
| Installation position | Any |
| Viscosity range | 10 To 800 Mm² /s |
| Weight | 0.8 Kg |
| Load cycles | >= 5 Million |
| Maximum switching frequency | 7200 1/h |
In the field of petroleum and chemical production, pressure relays can monitor pressure changes in containers and pipelines, timely triggering alarm devices or automatic control valves, and ensure the safety and stability of the production process.
In the pharmaceutical field, pressure relays are responsible for real-time monitoring of the pressure of pharmaceutical equipment. In the event of any abnormal pressure fluctuations, it can quickly take corresponding measures, such as closing valves, starting emergency pumps, etc., to prevent equipment damage and ensure drug quality.
In the field of food processing and packaging, pressure relays can monitor the pressure status of production equipment, ensuring that products are produced and packaged under suitable conditions, thereby improving production efficiency and product quality.
We provide technical support and services for our Hydraulic Control Valve product line. Our team of experts are available to answer any questions you may have and help you troubleshoot any problems that may arise.
We have a variety of resources available to you, including manuals, diagrams, and technical advice. You can also contact us directly for assistance with installation, maintenance, and repairs.
We also offer a range of warranty and maintenance packages, so you can be sure your Hydraulic Control Valve is always in working order and operating as it should.
If you have any questions or need assistance, please don’t hesitate to contact us.
Hydraulic Control Valve is packaged with bubble wrap and cardboard boxes. Shipping is generally done through air/sea freight.
